lsvdiskmember

Use the lsvdiskmember command to display a list of MDisks that are members of the specified volume.

Syntax

Parameters

-copy copy_id: (Optional) Displays a list of MDisks that are members of the specified volume copy.
-nohdr: (Optional) By default, headings are displayed for each column of data in a concise style view, and for each item of data in a detailed style view. The -nohdr parameter suppresses the display of these headings.
Note: If no data exists to be displayed, headings are not displayed.
-delim delimiter: (Optional) By default in a concise view, all columns of data are space-separated. The width of each column is set to the maximum width of each item of data. In a detailed view, each item of data has its own row, and if the headers are displayed, the data is separated from the header by a space. The -delim parameter overrides this behavior. Valid input for the -delim parameter is a 1-byte character. If you enter -delim : on the command line, the colon character (:) separates all items of data in a concise view; for example, the spacing of columns does not occur. In a detailed view, the data is separated from its header by the specified delimiter.
vdisk_id | vdisk_name: (Required) Identifies the specific volume to query.

Description

This command displays a list of managed disks, which provide extents that make up the volume that is specified by the ID.

Every volume is constructed from one or more MDisks. At times, you might have to determine the relationship between the two objects. The following procedure determines the relationships.

If you use the lsmdiskmember command, the concise view displays a list of volumes. These volumes are the ones that are using extents on the managed disk that is specified by the ID. The list displays the members of the respective object and is independent of the state of the individual members. If they are in an offline state, they are still displayed.

To determine the relationship between volumes and MDisks, issue the following command:

lsvdiskmember vdisk_id | vdisk_name

Where vdisk_id | vdisk_name is the name or ID of the volume. It displays a list of IDs that correspond to the MDisks that make up the volume.

To determine the relationship between volumes and MDisks, and the number of extents that are provided by each MDisk, you must use the command-line interface. Issue the following command:

lsvdiskextent vdisk_id | vdisk_name

Where vdisk_id | vdisk_name is the name or ID of the volume. It displays a table of MDisk IDs and the corresponding number of extents that each MDisk provides as storage for the specified volume.

To determine the relationship between MDisks and volumes, issue the following command:

lsmdiskmember mdisk_id | mdisk_name

Where mdisk_id | mdisk_name is the name or ID of the MDisk. It displays a list of IDs that correspond to the volumes that are using this MDisk.

To determine the relationship between MDisks and volumes, and the number of extents that are used by each volume, you must use the command-line interface. For a specified MDisk, issue the following command:

lsmdiskextent mdisk_id | mdisk_name

Where mdisk_id | mdisk_name is the name or ID of the MDisk. It displays a table of volume IDs and the corresponding number of extents that are used by each volume.

Note: You cannot specify this command for a thin-provisioned or compressed volume or a volume copy that is in a data reduction storage pool.

An invocation example

lsvdiskmember 1

The resulting output:

id
2